In an ideal world I'd go for:
Garcia, Martinez, Pacquiao, Golovkin
For people who deserve a payday:
Hopkins, Martinez, Golovkin, Pacquiao
What its looking like:
Khan, Martinez, Garcia, Golovkin/Pacquiao
I'm pretty sure he's gonna go for a 50th fight to bust Marciano's record. I'm guessing that will be a Canelo rematch or whoever else Oscar has lined up for him by 2016.
EDIT: Or Bradley!